Motors generally

Current requirements for vehicles are more pronounced for warm conditions than for cold for many reasons e.g., improved aerodynamics, transversal placement of the motor, generally higher temperatures under the hood, such that the automobile manufacturers prefer a reduction, rather than increase in RVP. 

Electrical apparatus for explosive gas atmospheres. Increased safety motors. General requirements 6181/1991 BS 5501-6/1977 -... 

HT motors specifically, and large LT motors generally, are recommended to have six such detectors, two in each phase to sense or monitor the temperature of likely hot... 

Chrysler Corporation, Ford Motors, General Motors Corporation 1995 Potential Failure Mode and Effects Analysis (FMEA) - Reference Manual, 2nd Edition. 

When powered by an electric motor, generally taking power from overhead wires ( catenaries ) such a vehicle is called an electric trolleybus or a trackless trolley. An electric bus taking power from current in the ground has been developed by Ansaldo-Breda. Battciy-powcrcd buses also have been developed, although all of these have been smaller than stan-... 

Polyphase, Squirrel-Cage Induction Motors, General Purpose Ratings, 1105, Allis Chalmers Mfg. Co., Milwaukee, WI, May (1957). 

Montgomery, D. C., Evaluation of Energy Efficient Motors, General Electric Co. (1981), reprint of paper presented at the Textile Industry Electrical Conference, May 1979. 

Electric motor drives are preferred if the power cost is low, since electric packages are less costly than turbine drives, and motors generally have lower maintenance requirements. Turbine drives are preferred if the fuel gas cost is more attractive than the cost of electric power. Turbines can also provide process heat for the pre-treatment system and may, thus, reduce the need for heating equipment. In many installations, gas turbine fuel is provided from flash gas in the main process. 

Power supply will be either single- or three-phase. A single-phase motor of the proper voltage can be used on a three-phase system if properly connected. But a three-phase motor cannot be used on single-phase supply. Three-phase motors generally cost less, perform better, and last longer than single-phase motors of the same size. 

Division 1 motors are explosion proof, and Division 2 will not be an ignition source for an explosion. If explosion-proof motors are required. Division 1 is the correct specification. Division 2 usually applies only to large motors, generally used in an outdoor installation, where the atmosphere can become explosive only when a serious process failure occurs. 

My Years with General Motors Alfred P. Sloan With an Introduction by John Egan... 

A business classic by the man who took General Motors to the top - and kept them there for decades. 

Several parameters come into the relation between density and equivalence ratio. Generally, the variations act in the following sense a too-dense motor fuel results in too lean a mixture causing a potential unstable operation a motor fuel that is too light causes a rich mixture that generates greater pollution from unburned material. These problems are usually minimized by the widespread use of closed loop fuel-air ratio control systems installed on new vehicles with catalytic converters. 

As a whole, a given crude is generally used to make products most of which have positive added values. This is particularly the case for motor fuels and specialty products. However, some of the products could have negative added values, as in the case of unavoidable products like heavy fuels and certain petroleum cokes. 

A modular scanner system for NDE has been developed. It consists of a selection of individual electronics and motor module components, supported by scanner configuration and control software. The modules are used as standard building blocks for construction of job specific, dedicated scanners as well and general purpose scanners. The use of modular scanner components significantly reduce the work, time and cost not only for the design and manufacture but also for establishing documentation and ensure compliance with the relevant EU-directive requirements. 

Propellants cast into rockets are commonly case-bonded to the motors to achieve maximum volumetric loading density. The interior of the motor is thoroughly cleaned, coated using an insulating material, and then lined with a composition to which the propellant binder adheres under the environmental stresses of the system. The insulation material is generally a mbber-type composition, filled with siUca, titanium dioxide, or potassium titanate. SiUca-filled nitrate mbber and vulcanizable ethylene—propylene mbber have been used. The liner generally consists of the same base polymer as is used in the propellant. It is usually appHed in a thin layer, and may be partially or fully cured before the propellant is poured into the rocket. 

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